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COVID-19-related Multisystem Inflammatory Syndrome in a Young Adult
Francisco Pombo1, Carolina Seabra1, Vergilio Soares1
1Centro Hospitalar do Tâmega e Sousa, Penafiel, Portugal.
Insights
Multisystem inflammatory syndrome in adults (MIS-A) is a hyperinflammatory condition linked to SARS-CoV-2 infection. Early diagnosis and treatment are crucial for managing this emerging syndrome.
Area of Science:
- Infectious Diseases
- Immunology
- Pediatrics
Background:
- Multisystem inflammatory syndrome in children (MIS-C) is associated with SARS-CoV-2 infection.
- Evidence suggests a similar syndrome, multisystem inflammatory syndrome in adults (MIS-A), may occur.
- This case report details a young adult with MIS-A following SARS-CoV-2 infection.
Purpose of the Study:
- To describe a case of a young adult presenting with MIS-A.
- To highlight the hyperinflammatory systemic syndrome and end-organ involvement in MIS-A.
- To contribute to the understanding of MIS-A as an emerging post-COVID-19 complication.
Main Methods:
- A case study of a young adult with a hyperinflammatory systemic syndrome.
- Diagnostic work-up included assessment for autoimmune, neoplastic, and infectious causes.
- Evaluation for past SARS-CoV-2 infection, including positive IgG autoimmune titres.
Main Results:
- The patient exhibited end-organ lesions across respiratory, cardiovascular, digestive, haematological, and mucocutaneous systems.
- No specific aetiology was identified through extensive testing.
- A presumptive diagnosis of MIS-A was made, with improvement noted after corticosteroid treatment.
Conclusions:
- MIS-A is an emerging, poorly understood entity following COVID-19.
- Diagnostic criteria and treatment guidelines for MIS-A are currently lacking.
- Increased awareness is vital for early recognition and management of MIS-A.
Introduction:
A condition called multisystem inflammatory syndrome in children (MIS-C), related to past SARS-CoV-2 infection, has been described in a series of cases. There is a growing body of evidence suggesting a similar entity in adults (MIS-A). We report a case of a young adult with a hyperinflammatory systemic syndrome with end-organ lesions and a recent SARS-CoV-2 infection.
Methods And Procedures:
The patient developed end-organ lesions in the respiratory, cardiovascular, digestive, haematological and mucocutaneous systems. A wide diagnostic work-up did not find any specific aetiology (autoimmunity, neoplastic or infectious). There was evidence of past SARS-CoV-2 infection with positive autoimmune titres (positive IgG). A presumptive diagnosis of MIS-A was made and treatment with corticosteroids was introduced with improvement.
Discussion:
COVID-19-related multisystem inflammatory syndrome in adults is still an unknown entity with no diagnostic criteria or treatment guidelines. Much of what is known is inferred from what we already know about MIS-C. There have been several reported cases with severity ranging from mild to severe. The mechanisms behind this condition are still largely unknown. More evidence is needed to establish diagnosis and treatment.
Learning Points:
COVID-19-related multisystem inflammatory syndrome in adults is a new entity with few case reports.Awareness is important for early diagnosis and treatment.
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